A019969 Decimal expansion of tangent of 71 degrees.

2, 9, 0, 4, 2, 1, 0, 8, 7, 7, 6, 7, 5, 8, 2, 2, 8, 0, 2, 5, 7, 9, 3, 2, 5, 5, 3, 4, 5, 2, 7, 0, 9, 1, 2, 5, 4, 0, 3, 1, 2, 6, 1, 9, 2, 1, 8, 4, 6, 2, 2, 1, 6, 6, 8, 3, 6, 3, 0, 2, 4, 7, 1, 1, 3, 9, 3, 7, 3, 9, 8, 9, 5, 2, 7, 7, 3, 0, 3, 3, 9, 8, 5, 0, 1, 1, 1, 4, 3, 0, 9, 6, 7, 6, 8, 8, 3, 9, 6

Offset

1,1

Comments

Also the decimal expansion of cotangent of 19 degrees. - Ivan Panchenko, Sep 01 2014

Links

Ivan Panchenko, Table of n, a(n) for n = 1..1000

Example

2.904210877675822802579325534527091254031261921846221668363...

Mathematica

RealDigits[Tan[71 Degree], 10, 120][[1]] (* Harvey P. Dale, Apr 07 2014 *)

Prog

(PARI) default(realprecision, 100); tan(71*Pi/180) \\ G. C. Greubel, Nov 21 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(71*Pi(R)/180); // G. C. Greubel, Nov 21 2018
(Sage) numerical_approx(tan(71*pi/180), digits=100) # G. C. Greubel, Nov 21 2018

Crossrefs

Cf. A019880 (sine of 71 degrees).

Sequence in context: A201893 A264920 A324833 * A185362 A140239 A221200

Adjacent sequences: A019966 A019967 A019968 * A019970 A019971 A019972

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved